You would use this muscle to help you cross your legs. (Hint: sitting on the floor in a yoga posture—the lostus position—involves this muscle, too).This muscle group acts primarily on the knee; involved with extension at the knee.This muscle would help abduct the thigh (move the thigh away from the midline of the body).

Select the two most appropriate muscle(ş) that perform(s) this body movement: Pronator teres |Splenius capitis Rhomboideus Major Teres Major Supraspinatus Trapezius

Select the two most appropriate muscle(s) that perform(s) this body movement: Temporalis Zygomaticus Masseter Sternohyoid Occipitalis Buccinator

What type of lever is the vastus medialis? Support your answer with a free body diagram. The vasti muscles are used both for sit-to-stand AND stand-to-sit movements. Which of these two tasks represents a concentric contraction and which represents an eccentric contraction? Which muscle (vastus lateralis or medialis) do you think is more important for doing a slow, controlled stand-to-sit transition? If you witnessed your grandfather "plopping" (doing an uncontrolled sit) into a chair, would you recommend giving him eccentric or concentric strengthening exercises for his vasti muscles? Justify your answer.